Henry e



(No Model.)

H. R. TOWNE.

KNOB ATTACHMENT.

No. 253,789. Patented Feb. 14,1882.

WITNESSES 7 1w VEJVTOR By his flttornys E92? N4 Penna Phwmrm mWnhingion. o. c.

UNITED STATES- PATENT OFFICE.

HENRY R. TOWNE, OF STAMFORD, CONNECTICUT, ASSIGNOR TO THE YALE LOCKMANUFACTURING COMPANY, OF SAME PLACE.

KNOB ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 253,789, dated.February 14, 1882;

' A Application filed December 27, 1881. (No modell To all whom it mayconcern:

Be it known that I, HENRY R. TOWNE, t Stamford, Connecticut, haveinvented certain new and useful Improvements in Knob-Shank Fastenings,of which the following is a specification, reference being had to theaccompanying drawings.

The object of my invention is to provide a simple, cheap, and reliablemeans for securing Io a knob-shank to a spindle, that will permit theready adjustment of the spindle within the shank without the use ofwashers, to accommodate variationsin the thicknesses ofdilferent doors.

:5 My presentinvention is an improvement up on that for which I filedapplication for Letters Patent October 10, 1881, wherein I show a knobsecured to a knob-shank, which latter is provided with a longitudinalslot extending from the spindle-socket out radially through the wall ofthe shank, and also with a transverse slot extending about half-waythrough the shank near its junction with the knob, which slots enablethe parts ot the shank to be 2 5 pressed toward each other, and thusclamped firmly upon the spindle. Figure 3 illustrates sucha knob-shankwith its slots 00 and y.

My improvement consists in providing a longitudinal slotted sleeve to'surround the 0 shank and clamp it, by means ofa screw, firmly upon theshank and the shank in turn firmly upon the spindle.

In the accompanying drawings, illustrating my invention, Fig. 1 is aview of a knob and 3 5 knob-shank havinga surrounding sleeve, and

.and cover up its slots.

showinga spindle in elevation. Fig. 2 is a section ofa shank and sleeveon the line 2 2 of Fig'. 1. Fig. 3 is a perspective view of a knob andslotted shank, and Fig. 4 is a perspective view of my shank-sleevedetached.

A indicates my knob-shank sleeve, slotted longitudinally at B, andprovided with lugs C and D, adapted to receive a screw, E, and to fitover a knob-shank such as above described When this sleeve is 5tightened by the operation of the screw it forces together the sidcsofthe shank and firmly holds the spindle in place. A groove, F, is made inthe shank, in which the screw rests as it passes through the lugs, thusholding the 0 sleeve more firmly onto the shank.

Having thus described my invention, what I claim, and desire to securebyLetters Patent,

isi 1. The combination of the knob-shankhaving the slots m and y withthe slotted sleeve A, provided with lugs C and D,in which works thescrewE, substantially as herein set forth.

2. The combination of the knob-shank having the slots 00 and y andgroove F with the Ge slotted sleeve A, providedwith lugs C and D, inwhich works the screw E, substantially as herein set forth.

In testimony whereof I have hereunto subscribed my name this 8th day ofDecember, 1881.

HENRY R. TOWNE.

Witnesses:

GEO. E. WHITE, SoHUYLEa Meanrr'r.

